“I'm sitting in the car with the windows rolled up cause I want to know how it feels to be left in the car,” Williams said. “But I would never leave my kids in the car like this. I can barely breathe out here, but my system is stronger than these little kids' systems.”

People are now taking the challenge themselves and posting it to his Facebook page, My Fox Tampa Bay reported.

More than three dozen children die of hyperthermia in cars annually in the United States, and since 1998 more than 500 children have died in hot cars. Heatstroke can happen when the temperature is as low as 57 degrees, and car interiors can reach well over 110 degrees even when the outside temperature is in the 60s.